/*
 * Copyright (C) 2015 SoftIndex LLC.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.datakernel.time;

/**
 * Singleton which gives access to system current time in milliseconds
 */
public final class CurrentTimeProviderSystem implements CurrentTimeProvider {
	/**
	 * Instance of provider
	 */
	private static final CurrentTimeProviderSystem INSTANCE = new CurrentTimeProviderSystem();

	/**
	 * Getter for instance
	 *
	 * @return instance of provider
	 */
	public static CurrentTimeProviderSystem instance() {
		return INSTANCE;
	}

	/**
	 * @return system current time in milliseconds
	 */
	@Override
	public long currentTimeMillis() {
		return System.currentTimeMillis();
	}

}